B
BrianS
Guest
I need some expert advice on a power supply circuit. Normally I would
have asked my friend who was an electronic wiz, but he's just passed
away
this year so I need a new electronic expert. I know this is probably a
lot to ask, but I figured there might be some kind soul who might lend
a little of their time. I would gladly exchange what knowledge I have
on other subjects such as AutoCAD, Linux, programming, etc.
I want to make a power supply circuit for a foam cutter. I've been
researching them on the Internet and found a number of different plans,
but I don't know enough about electronics to judge which one would be
best and if any of them could be modified (safely) to fit some of the
parts I already have. My skills are limited to soldering and following
a good set of instructions, not design.
I've found these different designs:
http://members.fortunecity.co.uk/slmohr/rcinterest2A.htm
http://www.uoguelph.ca/~antoon/gadgets/hotwire/hotwire.html
http://nsrca.org/technical/tip_tricks/foam_cutter/foam_cutting_power_supply.htm
Also I have a working transformer that is 120V input and 12V 8amp
output.
Most of these designs call for 24V transformers.
My questions are:
1. Which design do you think would give the best control of the wire
temperature?
2. Can any of these designs work with the wire and transformer that I
already have?
If so, what changes to the components (if any) would be required?
Thanks in advance
Brian
have asked my friend who was an electronic wiz, but he's just passed
away
this year so I need a new electronic expert. I know this is probably a
lot to ask, but I figured there might be some kind soul who might lend
a little of their time. I would gladly exchange what knowledge I have
on other subjects such as AutoCAD, Linux, programming, etc.
I want to make a power supply circuit for a foam cutter. I've been
researching them on the Internet and found a number of different plans,
but I don't know enough about electronics to judge which one would be
best and if any of them could be modified (safely) to fit some of the
parts I already have. My skills are limited to soldering and following
a good set of instructions, not design.
I've found these different designs:
http://members.fortunecity.co.uk/slmohr/rcinterest2A.htm
http://www.uoguelph.ca/~antoon/gadgets/hotwire/hotwire.html
http://nsrca.org/technical/tip_tricks/foam_cutter/foam_cutting_power_supply.htm
from a different project. I have no idea what ohms/foot rating it has.
Also I have a working transformer that is 120V input and 12V 8amp
output.
Most of these designs call for 24V transformers.
My questions are:
1. Which design do you think would give the best control of the wire
temperature?
2. Can any of these designs work with the wire and transformer that I
already have?
If so, what changes to the components (if any) would be required?
Thanks in advance
Brian